The utility model discloses a possess and enclose alarm signal of boundary treatment circuit from recovery function's electric capacity disturbance, the utility model relates to an alarm system circuit design technique field, it is main including the response cable, the transmission cable, the control cabinet comprises a cabinet body and a cabinet door, digital processing unit, receiving digital signal, the ARM treater is received by the marker flip flop that has data signal frequency characteristic that digital processing unit generates, first independent auxiliary counter for to digital processing unit's pulse count, set up in digital processing unit, the independent auxiliary counter of second for to the pulse count of ARM treater, set up the treater in ARM, central processing unit receives and is independently assisted counter output's the 2nd feedback signal and selected ground output resetting signal to digital processing unit and ARM treater by the supplementary counter output's of first independence the first feedback signal and second. Select ground output resetting signal by the first feedback signal and the 2nd feedback signal's the value relation of mating.